Engine Stall Problem
Thread Starter
On The Tree
iTrader: (3)
Joined: Dec 2001
Posts: 115
Likes: 2
From: Aguila, Arizona, USA
Engine Stall Problem Frustration level HIGH... LSX 468 cid, E85 running on an 0411 PCM, speed density tune. Engine starts and runs normally but stalls out at constant throttle position at any RPM after a few seconds of run time. No codes. This happened after replacing a broken crankshaft. I have replaced the MAP sensor, CPS, 8 new injectors, engine wiring harness. All circuits verified. Pulled the engine and oil pan to verify 24T reluctor wheel run out and CPS gap ('030" gap). I have been running low impedance injectors with this setup for 4 years with no problem. The new injectors are high impedance. I suspect the injector drivers in the PCM may be damaged. My question is: Would bad injector drivers cause this stall condition? Anyone seen this before? I have ordered a noid lamp to check the drivers.
TECH Senior Member
Joined: Jun 2016
Posts: 22,291
Likes: 3,616
From: Central Cal.
Running low impedance injectors will damage the PCM. You started a thread about this a while back. The drivers are damaged, and might be causing the stall condition. Wasn't the previous thread resolved? I don't remember that it was.
